Warp-tension.



PATENTED JAN, 16, 1906.

E. RENZ.

WARP'TENSION.

APPLICATION FILED 0GT.10,1904.

2 SHEETS-SHEET l.

MUNI] N www .mmm 1 No. 810,305. PATENTED JAN.16, 1906.

E. RENZ.

WARP TENSION.

APPLICATION FILED 0GT.10,1904.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

EUGENEy RENZ, OF STIRLING, NEW JERSEY, ASSIGNOR TO STIRLING SILK MANUFACTURING COMPANY, OF STIRLING, NEW JERSEY, A CORPORA- TION OF NEW JERSEY.

WARP-TENSION.

Specification of Letters Patent.

Patented Jan. 16, 1906.

To all whom, it may concern:

Be it known that I, EUGENE RENZ, a citi- Zen of the United States, residing at Stirling, in the county of Morris and State of New Jersey, have invented certain new and useful Improvements in Warp-Tensions, of which the following is a specification.

It is the intention of this invention to provide in combination with the warp-beam of a power-loom a brake of novel structure and arrangement to enable the insertion of more filling when it is required to produce a stiffer fabric, the construction being such as to increase the resistance to movement of the warp-beam at the instant the lay is operated 'to drive the filling in the shed and to relieve the warp-beam of this resistance when filling is inserted.

A further purpose of the invention is to secure the results aforesaid without impairing the efficiency of the loom or producing anyunsteady or jerky movement, which is highly objectionable.

For a full description of the invention and the merits thereof and also to acquire a knowledg'e of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.

While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which* Figure 1 is a side View of a crank-power loom embodying the invention, the harness,

cloth-beam, and operating parts being omitted, the lay being in section, and an upper part of the frame being broken away. Fig. 2 is a perspective View of the warp-beam and brake mechanism cooperating therewith. Fig. 3 is a plan view of the brake strap or band and terminal connections.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The loom illustrated is of ordinary construction, being of the variety operated by a crank, and is shown to give an idea of the application of the invention. The warp-beam `is designated by the reference-numeral 1, the

lay by the reference-numeral 2, and the laysword by the reference-numeral 3.' These parts are of well-known construction and arrangement.

The warp-beam is provided at its opposite ends with pulleys 4 for cooperation with the accustomed weighted rope or cord (not shown) and with a brake-pulley 5, with which cooperates a brake band or strap 6. A rod 7 is connected to one end of the brake-band 6, and an end portion is threaded to receive setnuts 8, by means ofwhich one end of the brake band is adjustably connected to a bracket, stud, or like part 9 of the loomframe. A rod 10 is connected to the other end of the brake-band and is attached to an arm l1, movable with the lay-sword, so as to alternately apply and release the brake as the lay oscillates. The brake-band 6 may be of leather, textile, or metal and is flexible, so as to conform to the brake-pulley 5 and alternately grip and release the same. The arm 1l must be of metal and is bolted or otherwise secured at one end to thelay-sword, so as to oscillate therewith to alternately tension or slacken the brake-band 6. In the preferable construction the arm 11 is adapted to yield, thereby providing for a gradual application of the brake.

The invention is adapted to be applied to the warp-beam of the type of loom shown, and the brake-band is connected with thelay, so as to admit of the brake being set when the lay moves forward to drive home the filling and to release the brake when the filling is being laid.

The purpose of the invention is to subject the warp-threads to a greater tension by increasing the resistance to movement of the warp-beam at the instant the lay is operated to drive home the filling or picks, with the result that more filling may be advantageously applied and a stiffer cloth or fabric produced.

Having thus described the invention, what is claimed as new iser In a power-loom, the combination of the lay, the lay-sword, a spring-arm attached at one end to the lay-sword, the warp-beam, a brake-pulley fast to an end of the warp-beam, a brake-band coperating with said brakeulley, rods attached to opposite ends of the rake-band, one of said rods having an end IOO portion threaded and passed loosely through In testimony whereof-I afi-ix my signature a part of the 1oorn-frarne, set-nuts tted to in presence of two Witnesses.

the threaded end of the rod Jfor adJustabiy EUGENE BENZ [L' Sh] connecting 1t to the loom-frame, and means connecting the other rod to the free end of Witnesses: the aforesaid spring-arm, substantially as set JACOB RUEGG, forth. FRANK MARESCH. 

